Chemistry 0620/22 Oct Nov 2024 | Cambridge IGCSE Past Papers With Mark Scheme

1. States of Matter & Atomic Structure | Phase changes of oxygen, gas behavior under pressure change, isotopic properties of rubidium.

2. Chemical Bonding & Structure | Ionic and covalent bond formation, differences in melting points, malleability and conductivity in metals.

3. Stoichiometry & Reactions | Decomposition of ammonium carbonate, empirical formula calculations, electrolysis of sodium chloride and copper(II) sulfate.

4. Equilibrium & Reaction Rates | Energy profile for ammonia formation, effect of catalysts and pressure on equilibrium yield, oxidation number changes.

5. Acids, Bases & Periodic Trends | Strength of acids based on dissociation, indicators like methyl orange, amphoteric properties of oxides.

6. Organic Chemistry & Polymers | Reactions of alkenes, fermentation vs. ethene hydration for ethanol, polymer structures and linkage identification.